You have done replacing Buffalo stock firmware with Debian, the last part is to adjust the hardware behavior to match the new operating system.
This work initially done by Sergej Wildemann for LinkStation Live V2 with my modification for LinkStation LS421DE for both Buffalo kernel and vanilla one.
What's LSMONITOR jobs:
- Controlling LED according to the current state (booting, power off, etc).
- Monitor the temperature of HDDs and adjust the fan speed according.
- Monitor power off switch and initiate shutdown when power switch position is off.
Installation
Do the following commands on your LinkStation LS421DE. If you have installed previous lsmonitor init script just remove it first:
$ update-rc.d lsmonitor stop $ update-rc.d lsmonitor remove
Get init script and extract:
$ wget https://github.com/tohenk/linkstation-mod/raw/master/lsmonitor/lsmonitor-unified.tar.gz $ tar -xvf lsmonitor-unified.tar.gz -C /
Install required packages:
$ apt-get install smartmontools hdparm evtest
Enable init script:
$ update-rc.d lsboot defaults $ update-rc.d lsmonitor defaults
Restart LinkStation LS421DE to take effect.
root@LS421DE:~# wget https://github.com/tohenk/linkstation-mod/raw/master/lsmonitor/lsmonitor-unified.tar.gz
–2017-09-01 21:13:10– https://github.com/tohenk/linkstation-mod/raw/master/lsmonitor/lsmonitor-unified.tar.gz
Resolving github.com (github.com)… 192.30.253.113, 192.30.253.112
Connecting to github.com (github.com)|192.30.253.113|:443… connected.
ERROR: The certificate of `github.com’ is not trusted.
ERROR: The certificate of `github.com’ hasn’t got a known issuer.
After install (via serial console)
82: /etc/init.d/lsmonitor: fan_speed: not found
82: /etc/init.d/lsmonitor: fan_speed: not found
82: /etc/init.d/lsmonitor: fan_speed: not found
82: /etc/init.d/lsmonitor: fan_speed: not found
82: /etc/init.d/lsmonitor: fan_speed: not found
and more…. more
in buffalo firmware make this http://forum.buffalo.nas-central.org/viewtopic.php?f=81&t=44437
LS421 uses Nidec U60R12MHAB-5* fan with max 3800 rpm
in my installed U60R [U60R12MLAB-5*] 2400 rpm http://www.nidec.com/en-NA/product/fan/category/F010/G050/P2000144/
Why
echo 3250 > /sys/devices/platform/gpio-fan/hwmon/hwmon0/fan1_target
its SLOW speed
echo 1500 > /sys/devices/platform/gpio-fan/hwmon/hwmon0/fan1_target
its MIDDLE speed
echo 5000 > /sys/devices/platform/gpio-fan/hwmon/hwmon0/fan1_target
Full speed
echo 0 > /sys/devices/platform/gpio-fan/hwmon/hwmon0/fan1_target
Stop fan
kernel 4.9.47 Linaro GCC 7.1-2017.08
in scripts ls-functions and ls-functions-vanilla error
0)
FAN_SPEED=$SPEED_STOP
;;
1)
FAN_SPEED=$SPEED_SLOW
;;
2)
FAN_SPEED=$SPEED_FAST << FAST
;;
3)
FAN_SPEED=$SPEED_FULL
and ls-functions-vanilla
SPEED_STOP=0
SPEED_SLOW=1500
SPEED_HIGH=3250 <<HIGH
SPEED_FULL=5000
in kernel 4.12.14 too
echo 3250 > /sys/class/hwmon/hwmon1/fan1_target
its SLOW speed
echo 1500 > /sys/class/hwmon/hwmon1/fan1_target
its MIDDLE speed
in kernel 4.13.3 too
echo 3250 > /sys/class/hwmon/hwmon1/fan1_target
its SLOW speed
echo 1500 > /sys/class/hwmon/hwmon1/fan1_target
its MIDDLE speed
I installed Debian Buzzy on my Buffalo Linkstation LS-GL – and I just cannot see any fan driver kernel modules loaded – so there is nothing this script can control. Also, since the installation, the NAS has started to beep intermittently, followed by a few seconds of full fan speed – but suddenly, it will start beeping incessantly and go into some emergency mode, where it cannot be accessed – but also is not fully powered off.
My guess is that it is a overheating response, since the fan doesn’t start at all when the NAS is powered on. It does come on once in a while, but most of the time it is off. The box never gets very hot, since I have a SSD installed in it. The CPU itself is fan-less
Any suggestions ?
BR
/Viggo